Galileo's only using, of course, his telescope in the first place because his human capacity for vision is insufficient to see the truths of the heavens.

他唯一一次用到望远镜,是因为仅凭人类的视力,并不能够看到天堂的真理所在。

耶鲁公开课 - 弥尔顿课程节选

We already talked a little bit about his name and the occlusion of sight.

关于他的名字和视力上的障碍,我们已经谈过了一点。

耶鲁公开课 - 1945年后的美国小说课程节选